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The 8 Best hex threading dies of 2025

Are you trying to find hex threading dies among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling hex threading dies on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 59 hex threading dies tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best hex threading dies you can buy today

No. 1
TOMMARS 75-Pc Tap and Die Set, SAE & Metric Hex Thread Taps Dies Wrench Metric Sizes M3 to M12 & Standard Sizes #4 to 1/2" Type NC NF NPT
  • Metric taps & dies sizes: M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x1.0, M7×1.0, M8x1.25, M9x1.0, M9x1.25, M10x1.25, M10x1.5, M11x1.5, M12x1.5, M12x1.75.
  • SAE taps & dies sizes: 4-40 NC, 6-32 NC, 8-32 NC, 10-32 NF, 10-24 NC, 12-24 NC, 1/4-20 NC, 1/4-28 NF, 5/16-18 NC, 5/16-24 NF, 3/8-16 NC, 3/8-24 NF, 7/16-14 NC, 7/16-20 NF, 1/2-13 NC, 1/2-20 NF, 1/8-28 BSP, 1/8-27 NPT.
  • Set includes tap wrench, T-handle tap wrench(2 piece), die wrench, screwdriver, thread pitch gauge(SAE & Metric). Suit for efficient clean cutting of internal and external threads.
  • Perfect to create new threads or repair damaged threads on most metals like carbon steel, cast iron, aluminum, brass, copper and stainless steel.
  • Each tap and die in this set is constructed of long-lasting alloy steel for maximum durability. Hardened, precision-ground and polished carbon steel surfaces make chip removal easy.
  • All cutting teeth are precisely machined to Rockwell hardness 60 HRC for best threading performance. Rust-resistant satin finish for smooth cuts with less friction.
No. 2
11 Piece UNC Hex Die Set 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1" Rethreading Carbon Steel Black Box with Handle
  • Made of Carton Steel
  • Include a Screw Gauge
  • 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 9/16"-12 5/8"-11 3/4"-10 7/8"-9 1"-8
No. 3
HOTYELL Rethreading Hex Pipe Die Set - 10 Pcs, UNC Right Hand Hexagon Die with High Carbon Steel in Metal Case (UNC-10 Pcs)
  • ✅ One Set is Enough: Our Die set include 1/4''-20, 5/16''-18, 3/8''-16, 7/16''-14, 1/2''-13, 9/16''-12, 5/8''-11, 3/4''-10, 7/8''-9 and 1''-8 UNC. A variety of dies are sufficient for almost all maintenance and repair work.
  • ✅ Superior Durability: We cooperated with the material research institute to change the ratio of carbon in the material, greatly improve the comprehensive mechanical properties of the material, and greatly increase the service life of our dies.
  • ✅ Precision Thread: The latest production technology maximizes the processing accuracy of the thread, and the outer surface of the threading die is smoother.
  • ✅ Portable Metal Case: An exquisite tool case will bring you great convenience, and the tools will be returned in time after use, reducing the risk of gadget loss.
  • ✅ 1 Year Warranty: No matter what problems are encountered when using our re-threading hex die set, we will solve it for you within 6 hours, and one-year warranty!
No. 4
KPKL 60 PC Tap and Die Set(titanium layer/Hexagonal Plate Teeth)- Include SAE Inch Size #4 to 1/2” and Metric Size M3 to M12, Coarse and Fine Threads | Essential Threading Rethreading Tool Kit
  • ☆Better materials and quality :Industrial grade GCr15 bearing steel construction ensures durability and tool longevity to withstand professional uses;Titanium coating on the surface,protects against moisture and rust, ensuring a longer service life.
  • ☆ Excellent cuttability : All cutting teeth are precisely CNC machined and accurately heat treated to Rockwell hardness 60 HRC for best threading performance.
  • ☆More Professional Hexagonal Plate Threads and Tapered Teeth Design: Ideal for making new threads or repairing damaged threads on most metals such as carbon steel, cast iron, aluminum, brass, copper, and stainless steel; tap (for internal threads) and drill (for external threads) with tapered teeth make threading more easily.
  • ☆Wide range of applications - Set includes (20) Metric taps and dies: M3x0.5, M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.25, M9x1.25, M10x1.0, M10x1.5, M12x1.75; (20) SAE Fractional taps and dies for coarse thread (UNC): 4-40 NC, 6-32 NC, 8-32 NC, 10-24 NC, 12-24 NC, 1/4-20 NC, 5/16-18 NC, 3/8-16 NC, 7/16-14 NC, 1/2-13 NC; (12) SAE Fractional taps and dies for fine thread (UNF): 10-32 NF, 1/4-28 NF, 5/16-24 NF, 3/8-24 NF, 7/16-20 NF, 1/2-20 NF; (2) NPT tap and die: 1/8-27 NPT.
  • ☆Components included in the 60PC tap die set - Comes with (1) Adjustable Tap Handle; (1) T-type Small Tap Handle; (1) Adjustable Die Handle; (2) Thread Pitch Gauges; (1) Slotted Screwdriver; (1) Storage and Carry Case
No. 5
WYNNsky Die and Tap Set in SAE and Metric, Hex Threading Dies for External Threads, Thread Tap for Internal Threads, Thread Wrench, Thread Pitch Gauge, 86 Pieces Gauge Kit for DIY Tapered
  • Threading Dies and Tap Size: Metric Size M3×0.5, M4×0.7, M5×0.8, M6×1.0, M7×1.0, M8×1.0, M8×1.25, M9×1.25, M10×1.25, M10×1.5, M11×1.25, M11×1.5, M12×1.5, M12×1.75, M14×1.5, M14×2.0, M16×1.5, M16×2.0; SAE Size #4-40 NC, #6-32 NC, #8-32 NC, #10-32 NC, #10-24 NC, #12-24NC, 1/4-28 NF, 1/4-20 NF, 1/8-27 NPT, 5/16-24 NF, 5/16-18 NF, 5/8-18 NF, 3/8-24 NF, 3/8-16 NF, 7/16-20 NF, 7/16-14 NF, 1/2-20 NF, 1/2-13 NF, 5/8-11 NF, 9/16-18 NF, 9/16-12 NF.
  • Application: Taps and dies are metal threading tools used to cut and restore internal and external threads precisely. A tap is used to form the female component of the assembly, as in the case of a nut or socket, a die is used on the male component, as in a screw or bolt. In other words, a Tap is used to create the internal threads in a hole for use with a threaded fastener and a die is used to make or repair external threading on a round rod, screw, or bolt.
  • Thread Pitch Gauge: Thread pitch gauges are used as a reference tool in determining the pitch of a thread that is on a screw or in a tapped hole. This tool is not used as a precision measuring instrument, rather it allows the user to determine the profile of the given thread and quickly categorize the thread by shape and pitch.
  • T Handle Tap Wrench: T Handles hold the end of a tap to provide extra leverage for hand tapping making them very useful for confined spaces or where extra reach or leverage is required. T Handle Tap wrenches may also be used with screw extractors, drills, and other tools.
  • Material: Taps and dies are used to cut metals and are typically made of high-speed steel or hardened carbon steel, with the former is much more robust and used for a broader range of material. These cutting materials are suitable for threading steel, cast steel, cast iron, non-ferrous metals, plastics, softwood, and hardwood.
No. 6
Drill America - DWTHXNPT-Set 6 Piece NPT Pipe Die Set, 1/8", 1/4", 3/8", 1/2", 3/4" and 1", Rethreading, Carbon Steel, Wooden Case
  • 6 Piece Carbon Steel NPT Hex Die Set
  • Made of carbon steel
  • Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction
  • Hex die is for dressing over bruised or rusty threads
  • No special holder is required for this type of die, any wrench large enough will suffice
  • Ideal for maintenance in the shop or field
  • Included Components: 6 Piece Hex Pipe Dies
SaleNo. 7
Anfrere 80pcs Tap and Die Set, SAE & Metric Tap Die Wrench Set, Metric Standard M3 to M12 Coarse Fine Rethreading Threads Bits for Cutting External and Internal Threads, NC, NF, NPT Repair Tools
  • RETHREADING SET -- Professional standard and metric tap die rethread tool kit for cutting or updating of internal and external threads on fasteners or fastener holes. The taps can also be used to remove broken screws.
  • EFFICIENT AND PRECISE -- All cutting teeth are precisely CNC machined and accurately heat treated to reach hardness 60 HRC for best threading performance.
  • LONG-LASTING MATERIAL -- Constructed from industrial grade hardened GCr15 bearing steel for maximum strength and longevity. Suitable for cutting steel, copper, aluminum, cast iron, and other materials.
  • ALL-IN-ONE SET -- Comes with thread gauge, tap handle, die handle, small tap chuck, and a carrying case for your convenience. Easy to assemble and operate.
No. 8
Alfa Tools HSHD74554 1/2-14 HSS Npt Hex Die
  • Hexagon Die national pipe thread
  • 1/2-inch-14 thread size, right hand thread
  • 1-7/16-inch across flats width, 3/4-inch thickness
  • Versatile hexagon shape assures use with adjustable wrench
  • Quantity: 1 per pack
SaleNo. 9
Drill America - DWTHX3816 3/8"-16 Carbon Steel Hex Rethreading Die, DWT Series
  • Made of carbon steel
  • Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction
  • Hex die is for dressing over bruised or rusty threads
  • No special holder is required for this type of die, any wrench large enough will suffice
  • Ideal for maintenance in the shop or field
SaleNo. 13
Hanson 12008 1" Rd Hex Plain Die Stock for Tap Die Extraction
  • Dies easily lock in position with set screw
  • For 1-inch hexagon or round dies
  • Threading tool
  • Die stock 9
  • Carded package
No. 14
Yamesh M14 x 1.5 Hex Die Rethreading Die Thread Die Carton Steel For Right Hand
  • 【Heat-Treated Carbon Steel】: Durable and strong for extended tool life.
  • 【Restores Worn Threads】: Ideal for repairing rusty or damaged threads.
  • 【No Special Holder Needed】: Works with any large wrench.
  • 【Versatile Use】: Suitable for shop and field repairs.
  • 【Size Marking】: M14 x 1.5 etched for quick identification.
No. 15
uxcell Hex Rethreading Die M6 x 1 Pitch Carbon Steel Metric Hexagon Taper Pipe Die Accuracy Grade: 6g
  • Made of heat treated carbon steel, high strength and hardness
  • Hex die is for dressing over rusty threads
  • No special holder is required for this type of die, any wrench large enough will suffice
  • Suitable for maintenance and repair work in the shop or field
  • Die size M6 x 1 is etched on the surface for easy identification
No. 16
IRWIN Hanson 12436 Die Stock 1-7/16" Hex Adj, for Tap Die Extraction
  • Maintains alignment for accurate, straight threading
  • For 1-7/16-inch hexagon dies
  • Threading tool
  • Die stock 36
  • Bulk package
No. 17
Irwin Tools Irwin Hanson 9420ZR 1/4" x20 NC Hex Die
  • 9420Zr - Die 1/4"-20Nc 1" Hex
  • Ideal for maintenance and repair work
  • Recommended for use with hexagon die stock
  • Die can be used with a wrench or socket when space is limited
No. 18
HARFINGTON Hex Threading Die M10 x 1.25 Metric Thread Right Hand High Speed Steel Rethreading Fixed Die Screw Cutting Tapping Repair Tool
  • Size - Metric thread size: M10 x 1.25; cutting direction: right hand; outside diameter: 19.6mm / 0.77"; thickness: 5.4mm / 0.21"; number of chip grooves: 4 chip grooves. Size is etched on the surface for easy identification.
  • Material - Hex threading dies are made from high speed steel (HSS) 6542, which offers excellent hardness, wear resistance, and heat resistance for durability and extended tool life. Precise, clean threads can be produced on a variety of materials including metal, plastic and wood.
  • Features - The hexagonal thread dies are designed with six flat sides for easy gripping and rotation during use for user convenience and control. No special holders are required, any large enough wrench will do. Threads are clear and easy to repair.
  • Applications - Can process, correct or clean external threads. Suitable for thread processing on stainless steel, aluminum alloy, cast iron, copper, iron, aluminum, plastic, etc. in pipe, plate, machinery maintenance and repair. Used for rethreading existing threads in hard materials like metals and creating new threads in soft materials like plastics.
  • Notice - Hex rethreading die can be used with die stock (also called die handle or die wrench) to achieve efficient and stable threading. It needs to be reversed regularly to facilitate the discharge of chips from the chip removal hole. When tapping, add appropriate lubricating oil to the cutting edge of the die.
No. 19
DIE 12-1.25MM 1" HEX
  • Made in United States
  • Package height :0.508 cm
  • Package length :14.223 cm
  • Package width :4.572 cm
SaleNo. 20
Irwin Tools DIE 10-1.50MM 1" HEX
  • Product Type:Tools
  • Item Package Dimensions:15.24 cm L X 2.794 cm W X 0.254 cm H
  • Item Package Quantity:1
  • Country Of Origin: United States

How to choose a good hex threading dies

Does the idea of finding a fantastic hex threading dies make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in hex threading dies. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top hex threading dies products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top hex threading dies on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top hex threading dies brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top hex threading dies based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the hex threading dies were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good hex threading dies, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your hex threading dies.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting hex threading dies for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our hex threading dies. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what hex threading dies should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on hex threading dies.